Phase Matching Test for RF Coax Cables
Phase Matching Test for RF Coax Cables
(OP)
I need to perform a phase match test and a electrical length test on some RF coax cables using a HP 8753C Network Analyzer over a HP 85047A S. Parameter Test Set and I don't know how to get started. Is there anyone out there who has perform similar test on RF coax cables and have a procedure that I might be able to follow??? How do I establish electrical length?? Is there a way to perform the test requirement using a Windows based software package to test the cables using the HP 8753C???
corngold
corngold
RE: Phase Matching Test for RF Coax Cables
To perform electrical lenght measurement You can use HP network analyzer with Time Domain transformation. But remember, to have good results You need analyzer with frequency range up to 20GHz. With this method is quite easy to decide where is connector and measure electrical lenght of coax cables.
To measure phase matching You need to have very good calibration. Calibration kits defined in network analyzers are not defined enough good. For example "thru" standard has zero delay offset. The best way is to take a close look at calibration standard definition in analyzer and if necessary modify them a little bit. It needs few calculations but all needed formulas You should find on the web or just contact HP.
RE: Phase Matching Test for RF Coax Cables
RE: Phase Matching Test for RF Coax Cables